X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfbzerarc.c;fp=Xserver%2Fprograms%2FXserver%2Fcfb%2Fcfbzerarc.c;h=0000000000000000000000000000000000000000;hb=ce66b81460e5353db09d45c02339d4583fbda255;hp=fab643bc9e34cc79039de8023f08c2259bbb4248;hpb=7772d71ffd742cfc9b7ff214659d16c5bb56a391;p=rdpsrv diff --git a/Xserver/programs/Xserver/cfb/cfbzerarc.c b/Xserver/programs/Xserver/cfb/cfbzerarc.c deleted file mode 100644 index fab643b..0000000 --- a/Xserver/programs/Xserver/cfb/cfbzerarc.c +++ /dev/null @@ -1,318 +0,0 @@ -/************************************************************ - -Copyright (c) 1989 X Consortium - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of the X Consortium shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from the X Consortium. - -********************************************************/ - -/* $XConsortium: cfbzerarc.c /main/24 1995/12/06 16:58:51 dpw $ */ -/* $XFree86: xc/programs/Xserver/cfb/cfbzerarc.c,v 3.0 1996/06/29 09:05:57 dawes Exp $ */ - -/* Derived from: - * "Algorithm for drawing ellipses or hyperbolae with a digital plotter" - * by M. L. V. Pitteway - * The Computer Journal, November 1967, Volume 10, Number 3, pp. 282-289 - */ - -#include "X.h" -#include "Xprotostr.h" -#include "miscstruct.h" -#include "gcstruct.h" -#include "pixmapstr.h" -#include "scrnintstr.h" -#include "cfb.h" -#include "cfbmskbits.h" -#include "mizerarc.h" -#include "cfbrrop.h" -#include "mi.h" - -#ifdef PIXEL_ADDR - -static void -RROP_NAME(cfbZeroArcSS8) (pDraw, pGC, arc) - DrawablePtr pDraw; - GCPtr pGC; - xArc *arc; -{ - miZeroArcRec info; - Bool do360; - register int x; - PixelType *addrp; - register PixelType *yorgp, *yorgop; -#if PSZ == 24 - int xorg, xorg3, xorgo, xorgo3; - register int xtmp; -#endif - RROP_DECLARE - register int yoffset; - int npwidth, dyoffset; - register int y, a, b, d, mask; - register int k1, k3, dx, dy; - - cfbGetPixelWidthAndPointer(pDraw,npwidth, addrp) - - RROP_FETCH_GC (pGC); - do360 = miZeroArcSetup(arc, &info, TRUE); - yorgp = addrp + ((info.yorg + pDraw->y) * npwidth); - yorgop = addrp + ((info.yorgo + pDraw->y) * npwidth); - info.xorg += pDraw->x; - info.xorgo += pDraw->x; -#if PSZ == 24 - xorg = info.xorg; - xorg3 = xorg * 3; - info.xorg = (info.xorg * 3) >> 2; - xorgo = info.xorgo; - xorgo3 = xorgo * 3; - info.xorgo = (info.xorgo * 3) >> 2; -#endif - MIARCSETUP(); - yoffset = y ? npwidth : 0; - dyoffset = 0; - mask = info.initialMask; - if (!(arc->width & 1)) - { -#if PSZ == 24 - if (mask & 2) - RROP_SOLID24((yorgp + info.xorgo), xorgo); - if (mask & 8) - RROP_SOLID24((yorgop + info.xorgo), xorgo); -#else - if (mask & 2) - RROP_SOLID((yorgp + info.xorgo)); - if (mask & 8) - RROP_SOLID((yorgop + info.xorgo)); -#endif /* PSZ == 24 */ - } - if (!info.end.x || !info.end.y) - { - mask = info.end.mask; - info.end = info.altend; - } - if (do360 && (arc->width == arc->height) && !(arc->width & 1)) - { - register int xoffset = npwidth; -#if PSZ == 24 - PixelType *yorghb = yorgp + (info.h * npwidth); - register int tmp1, tmp2, tmp1_3, tmp2_3; - - tmp1 = xorg + info.h; - tmp1_3 = tmp1 * 3; - tmp2 = xorg - info.h; - tmp2_3 = tmp2 * 3; - while (1) - { - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorg + x); - RROP_SOLID24(yorgop - yoffset + xtmp, xorg + x); - xtmp = (xorg3 - x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorg - x); - RROP_SOLID24(yorgop - yoffset + xtmp, xorg - x); - if (a < 0) - break; - xtmp = (tmp1_3 - y * 3) >> 2; - RROP_SOLID24(yorghb - xoffset + xtmp, tmp1 - y); - RROP_SOLID24(yorghb + xoffset + xtmp, tmp1 - y); - xtmp = (tmp2_3 + y * 3) >> 2; - RROP_SOLID24(yorghb - xoffset + xtmp, tmp2 + y); - RROP_SOLID24(yorghb + xoffset + xtmp, tmp2 + y); - xoffset += npwidth; - MIARCCIRCLESTEP(yoffset += npwidth;); - } -#else - PixelType *yorghb = yorgp + (info.h * npwidth) + info.xorg; - PixelType *yorgohb = yorghb - info.h; - - yorgp += info.xorg; - yorgop += info.xorg; - yorghb += info.h; - while (1) - { - RROP_SOLID(yorgp + yoffset + x); - RROP_SOLID(yorgp + yoffset - x); - RROP_SOLID(yorgop - yoffset - x); - RROP_SOLID(yorgop - yoffset + x); - if (a < 0) - break; - RROP_SOLID(yorghb - xoffset - y); - RROP_SOLID(yorgohb - xoffset + y); - RROP_SOLID(yorgohb + xoffset + y); - RROP_SOLID(yorghb + xoffset - y); - xoffset += npwidth; - MIARCCIRCLESTEP(yoffset += npwidth;); - } - yorgp -= info.xorg; - yorgop -= info.xorg; -#endif /* PSZ == 24 */ - x = info.w; - yoffset = info.h * npwidth; - } - else if (do360) - { - while (y < info.h || x < info.w) - { - MIARCOCTANTSHIFT(dyoffset = npwidth;); -#if PSZ == 24 - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorg + x); - RROP_SOLID24(yorgop - yoffset + xtmp, xorg + x); - xtmp = (xorgo3 - x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorgo - x); - RROP_SOLID24(yorgop - yoffset + xtmp, xorgo - x); -#else - RROP_SOLID(yorgp + yoffset + info.xorg + x); - RROP_SOLID(yorgp + yoffset + info.xorgo - x); - RROP_SOLID(yorgop - yoffset + info.xorgo - x); - RROP_SOLID(yorgop - yoffset + info.xorg + x); -#endif - MIARCSTEP(yoffset += dyoffset;, yoffset += npwidth;); - } - } - else - { - while (y < info.h || x < info.w) - { - MIARCOCTANTSHIFT(dyoffset = npwidth;); - if ((x == info.start.x) || (y == info.start.y)) - { - mask = info.start.mask; - info.start = info.altstart; - } -#if PSZ == 24 - if (mask & 1){ - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorg + x); - } - if (mask & 2){ - xtmp = (xorgo3 - x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorgo - x); - } - if (mask & 4){ - xtmp = (xorgo3 - x * 3) >> 2; - RROP_SOLID24(yorgop - yoffset + xtmp, xorgo - x); - } - if (mask & 8){ - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgop - yoffset + xtmp, xorg + x); - } -#else - if (mask & 1) - RROP_SOLID(yorgp + yoffset + info.xorg + x); - if (mask & 2) - RROP_SOLID(yorgp + yoffset + info.xorgo - x); - if (mask & 4) - RROP_SOLID(yorgop - yoffset + info.xorgo - x); - if (mask & 8) - RROP_SOLID(yorgop - yoffset + info.xorg + x); -#endif /* PSZ == 24 */ - if ((x == info.end.x) || (y == info.end.y)) - { - mask = info.end.mask; - info.end = info.altend; - } - MIARCSTEP(yoffset += dyoffset;, yoffset += npwidth;); - } - } - if ((x == info.start.x) || (y == info.start.y)) - mask = info.start.mask; -#if PSZ == 24 - if (mask & 1){ - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorg + x); - } - if (mask & 4){ - xtmp = (xorgo3 - x * 3) >> 2; - RROP_SOLID24(yorgop - yoffset + xtmp, xorgo - x); - } -#else - if (mask & 1) - RROP_SOLID(yorgp + yoffset + info.xorg + x); - if (mask & 4) - RROP_SOLID(yorgop - yoffset + info.xorgo - x); -#endif /* PSZ == 24 */ - if (arc->height & 1) - { -#if PSZ == 24 - if (mask & 2){ - xtmp = (xorgo3 - x * 3) >> 2; - RROP_SOLID24(yorgp + yoffset + xtmp, xorgo - x); - } - if (mask & 8){ - xtmp = (xorg3 + x * 3) >> 2; - RROP_SOLID24(yorgop - yoffset + xtmp, xorg + x); - } -#else - if (mask & 2) - RROP_SOLID(yorgp + yoffset + info.xorgo - x); - if (mask & 8) - RROP_SOLID(yorgop - yoffset + info.xorg + x); -#endif /* PSZ == 24 */ - } -} - -void -RROP_NAME (cfbZeroPolyArcSS8) (pDraw, pGC, narcs, parcs) - register DrawablePtr pDraw; - GCPtr pGC; - int narcs; - xArc *parcs; -{ - register xArc *arc; - register int i; - BoxRec box; - int x2, y2; - RegionPtr cclip; - - cclip = cfbGetCompositeClip(pGC); - for (arc = parcs, i = narcs; --i >= 0; arc++) - { - if (miCanZeroArc(arc)) - { - box.x1 = arc->x + pDraw->x; - box.y1 = arc->y + pDraw->y; - /* - * Because box.x2 and box.y2 get truncated to 16 bits, and the - * RECT_IN_REGION test treats the resulting number as a signed - * integer, the RECT_IN_REGION test alone can go the wrong way. - * This can result in a server crash because the rendering - * routines in this file deal directly with cpu addresses - * of pixels to be stored, and do not clip or otherwise check - * that all such addresses are within their respective pixmaps. - * So we only allow the RECT_IN_REGION test to be used for - * values that can be expressed correctly in a signed short. - */ - x2 = box.x1 + (int)arc->width + 1; - box.x2 = x2; - y2 = box.y1 + (int)arc->height + 1; - box.y2 = y2; - if ( (x2 <= MAXSHORT) && (y2 <= MAXSHORT) && - (RECT_IN_REGION(pDraw->pScreen, cclip, &box) == rgnIN) ) - RROP_NAME (cfbZeroArcSS8) (pDraw, pGC, arc); - else - miZeroPolyArc(pDraw, pGC, 1, arc); - } - else - miPolyArc(pDraw, pGC, 1, arc); - } -} - -#endif